減圧注入工法によるプレパックドコンクリートに関する研究 : その 2 注入モルタルの流動性およびその他の性能におよぼす各種要因の影響

概要

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The purpose of this paper is to investigate the fluidity and other properties of grout in the vacuum prepacked concrete. The authors have presented the new relative fluidity test in the previous paper (part 1. fundamental theories related to flow properties of grout). They studied the influence of several factors on the fluidity by the new test and at the same time bleeding, segregation and strength. The factors studied here are mix proportion, water content and grading of sand, water reducing agent and aluminum powder, mixing time and method. As the relative fluidity test enables to obtain relative shear stress yielding value (F_0), relative flow viscosity coefficient (λ), and relative closure coefficient (⊿F_0), the influence of these factors on the fluidity became clearer. And it was also made clear that other properties were influenced by these factors greatly.
社団法人日本建築学会の論文
1980-07-30